Sökning: "Road transport technology"

Visar resultat 21 - 25 av 286 avhandlingar innehållade orden Road transport technology.

1. 21. Waste in road transport operations - using information sharing to increase efficiency

   Författare :Henrik Sternberg; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; road transport operations; transport efficiency; ICT; information sharing; transport information systems; freight transportation; motor carrier;

   Sammanfattning : In terms of efficiency, road transport operations have historically seen very little development relative to other supply chain areas and some authors have even referred to freight transportation as the “forgotten factor.” Several studies world-wide have shown a generally low level of efficiency in road transport operations. The U.S. LÄS MER

3. 22. Implementing Road Pricing : Standards, Institutions, Costs, and Public Acceptance

   Författare :Carl J. Hamilton; Jonas Eliasson; Robert Lindsey; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Much has been researched and written about road pricing, and especially how it affects traffic flow, congestion, the environment, and social welfare in general. This doctoral thesis analyses the implementation of road user charges rather than its effects. The dissertation consists of five separate papers, each addressing a subset of the topic. LÄS MER

4. 23. Operating cycle representations for road vehicles

   Författare :Pär Pettersson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; operating cycle; full vehicle simulation; energy usage; transport operation description; road format; CO2 emissions;

   Sammanfattning : This thesis discusses different ways to represent road transport operations mathematically. The intention is to make more realistic predictions of longitudinal performance measures for road vehicles, such as the CO2 emissions. LÄS MER

5. 24. Simulation Studies for Improved Efficiency in Road and Rail Freight Transports

   Författare :Ingrid Johansson; Markus Bohlin; Oskar Fröidh; Behzad Kordnejad; Carl-William Palmqvist; C. Tyler Dick; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heavy-duty vehicle platooning; road traffic simulation; intelligent transport systems; optimal control; longitudinal cruise control; fuel economy; railway traffic simulation; microscopic simulation; macroscopic simulation; freight trains; early departures; capacity; railway stations; strategic planning; timetable compression; UIC Code 406; Transportsystem; Transport Systems;

   Sammanfattning : The demand for road and rail freight transport continues to grow with the expanding economy, while the climate crisis requires reduction in greenhouse gas emissions. Therefore, tools and solutions for reducing fossil fuel use and enabling more efficient use of infrastructure are needed. LÄS MER

7. 25. Mathematical modelling of operating cycles for road vehicles

   Författare :Luigi Romano; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy estimation; transport application; operating cycle; autoregressive models; road mission; stochastic models;

   Sammanfattning : Difficulties that commercial vehicles are facing in meeting regulation standards require ad-hoc solutions. Emissions can be dramatically lowered if the characteristics of the transport application are known in advance. LÄS MER